<template>
  <div>
     <!-- 面包屑导航 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>分类管理</el-breadcrumb-item>
      <el-breadcrumb-item>参数列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区域 -->
      <el-card>
        <!-- 警告区域 -->
        <el-alert
          title="注意：只允许为第三级分类设置相关参数！"
          type="warning" :closable="false" show-icon
          effect="dark">
        </el-alert>
        <!-- 选择商品分类区域 -->
        <el-row class="cat_opt">
          <el-col>
            <span>选择商品分类：</span>
            <!-- 选择商品分类的级联选择框 -->
            <el-cascader
            v-model="seletedCateKeys"
            :options="cateList"
            clearable filterable
            :props="cascaderProps"
            @change="handleChange"></el-cascader>
          </el-col>
        </el-row>
        <!-- tab页签区域 -->
        <el-tabs v-model="activeName" @tab-click="handleTabClick">
        <el-tab-pane label="动态参数" name="many">
          <el-button @click="addDialogVisible=true"
          type="primary" size="mini" :disabled="isBtnDisabled">添加参数</el-button>
        <!-- 动态参数表格 -->
        <el-table
          :data="manyTableData" border stripe
          style="width: 100%">
           <el-table-column
            type="expand"
           >
    <!-- eslint-disable-next-line -->        
           <template v-slot="scope">
            <el-tag @close="handleClose(index,scope.row)"
            v-for="(item, index) in scope.row.attr_vals" :key="index" closable>{{item}}</el-tag>
            <el-input
              class="input-new-tag"
              v-if="scope.row.inputVisible"
              v-model="scope.row.inputValue"
              ref="saveTagInput"
              size="small"
              @keyup.enter.native="handleInputConfirm(scope.row)"
              @blur="handleInputConfirm(scope.row)"
            >
            </el-input>
            <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>
                      </template>
          </el-table-column>
          <el-table-column
            type="index"
            label="#" >
          </el-table-column>
          <el-table-column
            prop="attr_name"
            label="参数名称"
            width="width">
          </el-table-column>
          <el-table-column
            label="操作" 
            width="width">
    <!-- eslint-disable-next-line -->          
            <template  v-slot="scope">              
            <el-button type="primary" size="mini" icon="el-icon-edit" @click="showEditDialog(scope.row.attr_id)">编辑</el-button>
            <el-button type="danger" size="mini"  icon="el-icon-delete"  @click="removeParams(scope.row.attr_id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        </el-tab-pane>
        <el-tab-pane label="静态属性" name="only">
          <el-button @click="addDialogVisible=true"
          type="primary" size="mini" :disabled="isBtnDisabled">添加属性</el-button>
          <!-- 静态属性表格 -->
          <el-table
          :data="onlyTableData" border stripe
          style="width: 100%">
           <el-table-column
            type="expand"
           >
    <!-- eslint-disable-next-line -->        
           <template v-slot="scope">
            <el-tag @close="handleClose(index,scope.row)"
            v-for="(item, index) in scope.row.attr_vals" :key="index" closable>{{item}}</el-tag>
            <el-input
              class="input-new-tag"
              v-if="scope.row.inputVisible"
              v-model="scope.row.inputValue"
              ref="saveTagInput"
              size="small"
              @keyup.enter.native="handleInputConfirm(scope.row)"
              @blur="handleInputConfirm(scope.row)"
            >
            </el-input>
            <el-button v-else class="button-new-tag" size="small" @click="showInput(scope.row)">+ New Tag</el-button>
                      </template>
          </el-table-column>
          <el-table-column
            type="index"
            label="#" >
          </el-table-column>
          <el-table-column
            prop="attr_name"
            label="参数名称"
            width="width">
          </el-table-column>
          <el-table-column
            label="操作" 
            width="width">
    <!-- eslint-disable-next-line -->          
            <template  v-slot="scope">              
            <el-button type="primary" size="mini" icon="el-icon-edit" @click="showEditDialog(scope.row.attr_id)">编辑</el-button>
            <el-button type="danger" size="mini"  icon="el-icon-delete" @click="removeParams(scope.row.attr_id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        </el-tab-pane>
        
      </el-tabs>
      </el-card>


      <!-- 添加参数的对话框 -->
      <el-dialog @close="addDialogClosed"
        :title="'添加'+titleText"
        :visible.sync="addDialogVisible"
        width="50%"
        >
        <!-- 添加参数的对话框 -->
        <el-form :model="addForm"
        :rules="addFormRules" ref="addFormRef" label-width="100px">
          <el-form-item :label="titleText" prop="attr_name">
            <el-input v-model="addForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
        
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addParams">确 定</el-button>
        </span>
      </el-dialog>

            <!-- 修改参数的对话框 -->
      <el-dialog @close="editDialogClosed"
        :title="'修改'+titleText"
        :visible.sync="editDialogVisible"
        width="50%"
        >
        <!-- 修改参数的对话框 -->
        <el-form :model="editForm"
        :rules="editFormRules" ref="editFormRef" label-width="100px">
          <el-form-item :label="titleText" prop="attr_name">
            <el-input v-model="editForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
        
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editParams">确 定</el-button>
        </span>
      </el-dialog>
  </div>
</template>

<script>
export default {
  data(){
    return{
      cateList:[],
      seletedCateKeys:[],
      cascaderProps:{
            value:'cat_id',
            label:'cat_name',
            children:'children',
            expandTrigger: 'hover'            
        },
      columns:[
            {
                label:'分类名称',
                prop:'cat_name'
            },{
                label:'是否有效',
                type:'template',
                template:'isok'
            },{
                label:'排序',
                type:'template',
                template:'order'
            },{
                label:'操作',
                type:'template',
                template:'opt'
            }
        ],
        activeName:'many',
        manyTableData:[],
        onlyTableData:[],
        addDialogVisible:false,
        addForm:{
          attr_name:''

        },
        addFormRules:{
          attr_name:[
            {required: true, message:'请输入参数名称', trigger: 'blur'}
          ]
        },
        editForm:{
        },
        editFormRules:{
          attr_name:[
            {required: true, message:'请输入参数名称', trigger: 'blur'}
          ]
        },
        editDialogVisible:false,
        inputVisible:false,
        inputValue:''



    }
  },
  created(){
    this.getCateList()
  },
  methods:{
    async getCateList(){
            const {data:res}=await this.$http.get('categories')
            if(res.meta.status!=200) return this.$message.error('获取分类失败');
            // console.log(res.data);
            this.cateList=res.data
        },
          handleChange(){
  // console.log(this.seletedCateKeys);
            this.getParamsData()


         },
          handleTabClick(){
            this.getParamsData()
           
         },
    async getParamsData(){
            if (this.seletedCateKeys.length!=3) {
                            this.seletedCateKeys=[]
                            this.manyTableData=[]
                            this.onlyTableData=[]
                            return
                        }

             const {data:res}=await this.$http.get(`categories/${this.cateId}/attributes`,{
               params:{sel:this.activeName}
             })
            if(res.meta.status!=200) return this.$message.error('获取属性失败');
            console.log(res.data);
            console.log('--------下面是对结果中的数据进行修改，结果上面的也修改了？----------');
            res.data.forEach(e => {
              e.attr_vals=e.attr_vals?e.attr_vals.split(' '):[]
              e.inputVisible=false
              e.inputValue=''
            });
            console.log(res.data);

            if (this.activeName=='many') {
              this.manyTableData=res.data
            }
              this.onlyTableData=res.data

         },
         addDialogClosed(){
           this.$refs.addFormRef.resetFields()

         },
         addParams(){
           this.$refs.addFormRef.validate(async (valid) => {
             if (!valid)  return
              const {data:res}=await this.$http.post(`categories/${this.cateId}/attributes`,{
                attr_name:this.addForm.attr_name,
                attr_sel:this.activeName
              })
             if (res.meta.status!=201) return this.$message.error('添加参数失败')
             this.$message.success('添加参数成功')
             this.addDialogVisible=false
             this.getParamsData()
             

           })
         },
         async showEditDialog(attr_id){
            const {data:res}=await this.$http.get(`categories/${this.cateId}/attributes/${attr_id}`,{
               params:{attr_sel:this.activeName}
             })
            if(res.meta.status!=200) return this.$message.error('获取参数信息失败');
            console.log(res.data);
            this.editForm=res.data
           this.editDialogVisible=true
         },
         editParams(){
           this.$refs.editFormRef.validate(async (valid) => {
             if (!valid)  return
              const {data:res}=await this.$http.put(`categories/${this.cateId}/attributes/${this.editForm.attr_id}`,{
                attr_name:this.editForm.attr_name,
                attr_sel:this.activeName
              })
             if (res.meta.status!=200) return this.$message.error('修改参数失败')
             this.$message.success('修改参数成功')
             this.editDialogVisible=false
             this.getParamsData()             

           })

         },
         editDialogClosed(){
           this.$refs.editFormRef.resetFields()

         },
         async removeParams(attr_id){
           const result=await this.$confirm('此操作将永久删除该参数, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        if(result !='confirm') return this.$message.info('已取消删除！')
           const {data:res}=await this.$http.delete(`categories/${this.cateId}/attributes/${attr_id}`)
           if(res.meta.status!=200) return this.$message.error('删除参数失败！')
           this.$message.success('删除参数成功！')
           this.getParamsData()
         },
         async handleInputConfirm(row){
           console.log('ok');
           if (row.inputValue.trim().length===0) {
             row.inputValue=''
             row.inputVisible=false
             return
           }
           row.attr_vals.push(row.inputValue.trim())
           row.inputValue=''
           row.inputVisible=false
           this.saveAttrVals(row)

         },
         showInput(row){
           row.inputVisible=true
           this.$nextTick(_ => {
          this.$refs.saveTagInput.$refs.input.focus();
        });
         },
         handleClose(i,row){
            row.attr_vals.splice(i,1)
            this.saveAttrVals(row)
         },
         async saveAttrVals(row){
          const {data:res}=await this.$http.put(`categories/${this.cateId}/attributes/${row.attr_id}`,{
             attr_name:row.attr_name,
             attr_sel:row.attr_sel,
             attr_vals:row.attr_vals.join(' ')
           })
           if(res.meta.status!=200) return this.$message.error('修改参数失败！')
           this.$message.success('修改参数成功！')

         }
  },
  computed:{
    isBtnDisabled(){
      if (this.seletedCateKeys.length!=3) {
        return true 
      }
      return false
    },
    cateId(){      
      if (this.seletedCateKeys.length===3) {
        return this.seletedCateKeys[2] 
      }
      return null
    },
    titleText(){
      if (this.activeName==='many') {
        return '动态参数'
      }
        return '静态属性'

    }  

  }
}
</script>

<style lang="less" scoped>
.cat_opt{
  margin: 15px 0;
}
.el-tag{
    margin: 7px;
}
.el-input{
  width: 120px;
}
</style>
